Scarifier



March 13, 1934. H. w. PROTZELLER 1,951,155

SCARIFIER Filed Dec. 1. 1933 5 Sheets-Sheet l ammo o Harm \V. Protzefler 1934. H. w. PROTZELLER 1,951,166

SOARIFIER Filed Dec. 1. 1935 5 Sheets-Sheet 2 Harm \7. Drokzeuer March 13, 1934. H. w. PROTZELLER SCARIFIER Filed Dec. 1, 1933 5 Sheets-Sheet 3 gwuen vbo't/ Hcwrg \V. Dvo I: zeller arch 13, 1934. H. w. PROTZELLER 1,951,166

' SCARIFIER Filed Dec. 1. 1933 5 Sheets-Sheet 4 Hurrg \7. rol'zeuer March 1934. H w. PROTZELLER 5 SCARIFIE'R Filed Dec. 1, 1933 5 Sheets-Sheet 5 Harrq W. 'Drol'zeu e1" /ZMrW Patented Mar. 13, 1934 STATES @HQE SCARIFIER Application December 1, 1933, Serial No. 700,528

8 Claims.

My invention relates to improvements in scarifiers and particularly to scarifiers adapted to be employed in maintaining the rock ballast of railway tracks.

It is well known that the rock ballast of tracks acquires accumulations of dirt which is sifted and washed into the voids between the pieces of rock. Fouled by such accumulations of dirt, the ballast will drain poorly, if at all, with the result that mud stockings or dams are formed about the ties which trap water in the pockets in which the ties are seated. Under such conditions, the

ties pump the water from the tie pockets, as the railway cars pass along the rails, the spurting Water carrying the finer particles of ballast with it to the detriment of the road bed.

In railway maintenance work, the drainage of rock ballasted track is promoted by forking or otherwise working the rock constituting the ballast shoulders, such process serving to remove the dirt and other debris from the pieces of rock at the shoulders and thus make it possible for water to drain from the crib and through the shoulders at either side thereof.

An object of the present invention is to supply simple, durable and inexpensive means for effectively working the rock in ballast shoulders to promote drainage therein.

A feature of the invention resides in providing scarifying equipment for track shoulders in which teeth are carried on hangers supported by a traveler movable along the track, the teeth being reversible and interchangeable on the hangers for the effective accomplishment of the work to be performed. I

A further feature of the invention resides in the provision of double pointed scarifying teeth of composite construction in which each tooth consists of a pair of identical members.

Another object of the invention is to provide a hanger and tooth construction of the present character in which each of companion tooth members individually cooperate with its respective hanger to withstand the strains against it independently of the means employed for holding the companion tooth members together.

Other objects of the invention reside in the novel combination and arrangement of parts and in the details of construction hereinafter illustrated and/ or described.

In the drawings, Fig. 1 is a front elevational view of a scarifying device incorporating my invention; Fig. 2 is a side elevational view of a portion of the device shown in Fig. 1, the same particularly illustrating the gang of scarifying teeth at one side of the device together with their hangers and the wing frame therefor; Fig. 3 is a plan view of the structure shown in Fig. 2; Fig. 4 is a perspective view illustrating a scarifying tooth member as seen from the inner side thereof; Fig. 5 is a perspective view of a scarifying tooth member as seen from the outer side thereof; Fig. 6 is a perspective view of the lower end of one of the hanger bars to which pairs of tooth members are applied; Fig. 7 is a vertical sectional view in detail taken as on the line '7'? of Fig. 2 and showing the manner in which a pair of tooth members are secured to one anot ier and to a hanger bar; Figs. 8 to 15 inclusive are perspective views of teeth showing the same variously applied to hanger bars as at the right and left sides of a scarifying device and in various stages of wear. Referring now to the accompanying drawings, it will be seen that ballast for rails 10 and ties ll of a track is outlined in dotted lines at the central portion of Fig. 1, reference numeral 12 being used to designate the ballast shoulders and the reference numeral 14 to designate the crib or road bed between the shoulders. In the illustrated scarifier, gangs of scarifying teeth A are mounted on wing frames B pivoted to the opposite sides of a car or traveler C. In the construction of the car, as shown, a frame is mounted on wheels 15, said frame including end beams 16 and side beams 17, the latter supporting posts 18 which carry a canopy 19. The wing frames B which may be of any suitable construction, are each shown as including a pair of arms 20 pivoted to brackets 21 secured to a side beam 17 of the car and as further including a plurality of attaching flanges 22 to which the hanger bars 23 are secured. These bars 23 are bolted at their upper ends to their respective attaching flanges 22 and disposed edgewise relative to the direction of travel, the scarifying teeth A being secured to said bars 23 at the lower ends thereof. In order that the scarifying teeth A may occupy a vertically stepped relation with the innermost teeth, the hanger bars 23 for the two frames B are made in graduated lengths as shown in Figs. 1 and 2 and in order that the teeth A may occupy a horizontally stepped relation with the innermost teeth in a leading position, the hanger bars 23 are secured to their attaching flanges 22 in the stepped relation shown in Figs. 2 and 3.

Cables 24 suspended from the canopy posts 18 and secured to the wing frames B variably limit the extent to which said wing frames may be depressed and provide for adjustably positioning said frames and their respective teeth A to suit the requirements at any particular stage of work. The car C may carry equipment, not shown, for propelling the same and for hoisting he wing frames B. Instead of employing the cables 24 as limit means for the wing frames B, said cables may serve solely for hoisting the wings and additional check devices such as chains or the like, not shown, may be employed to limit the extent to which thewing frames B may be depressed in any given operation.

The hangers 23 consist of bars, each bar having openings 25, 26 and 2'7 therein at the lower end thereof (Fig. 6), said openings forming sockets at either side of the bar for the purpose of effecting the attachment of a tooth to the bar, as will hereinafter appear.

The scarifying teeth A are identical and each thereof comprises a pair of identical plate-like members a of triangular shape. The details of construction of the form of tooth member em ployed will be readily understood upon an inspection of Figs. 4 and 5. This triangular plate-like member a is of elongated configuration having opposed working points 28 and a shank portion 29 therebetween, the shank portion being recessed so that the inner face thereof is inset relative to the plane of the inner faces of the teeth 28, the distance between said plane and the inner face of the shank portion 29 being equal to one-half the thickness of the bar material from which the hangers 23 are formed. Issuing from the inner face of the shank portion 29 are a number of bosses 30, 31, 32 and 33, said shank having bores 34 therein extending axially through said bosses and countersunk, as at 35, at the outer face of the shank. In a tooth assembly, two members are brought together with their faces against each other and with the points 28 of one registering with the points of the other, the recessed shank portions 29 of the two members providing an aperture or gap between said members to receive the particular hanger bar 23 to which the assembly is applied. The bosses 3G, 31 and 32 constitute one combination and the bosses 39, 31 and 33 constitute another combination, the bosses in each combination having the same relative disposition as the openings 25, 26 and 27 in the hanger bars 23, the one combination of bosses on one tooth member and the other 00-. bination on the companion member of a tooth assembly being received in said openings which form sockets for their reception at opposite sides of a bar 23. Headed bolts 36 fitted with nuts 37 are employed to clamp the paired members of a tooth assembly together, the bodies of said bolts being received in the registering bores 34 of the companion bosses of said members, those bolts received in the bores of the bosses engaged in the openings of a hanger bar being at the same time received in said openings. The head of each bolt 36 is received in a countersink 35 in one member of a tooth assembl' the nut 37 therefor being received in the corresponding countersink of the companion member.

Clamped together by the bolts 36, the members of a tooth assembly, in effect, constitute a unitary tooth structure in which the bosses on the shank portions 29, in cooperation with a hanger bar 23, relieve said bolts from all shearing strains.

In addition to the bores 34 which extend through the bosses on the portion 29 of a tooth member, the points 28 of such member are each formed with a bore 38 therein, each bore having a countersink 39 at the outer side of the member. In a tooth assembly, these bores 38 in companion members register with each other and receive additional clamping bolts iii.

The bosses on the shank portions 29 of the tooth members are so disposed that in fitting either of said two combinations of bosses to the openings in a hanger bar 23 the leading point of the tooth is somewhat depressed as compared with the trailing point, the tooth in either case occupying the same angular relation with respect to the hanger bar.

In use, the scarifying teeth, made up of paired tooth members, are applied to the hem er bars 23. With the wing frames B vertically adiusted to cause the teeth to work into the ballast shoulders to a desired depth, the car C is propelled along the track, the pieces of rock in the shoulders being tumbled outwardly away from the crib 14. In repeating this process with the wings progressively lowered on the different trips, the rock in the ballast shoulders is substantially freed from dirt, the rock being thereafter bladed back by means, not shown, to reform the ballast shoulders.

During an operation, the wear on the leading or working points of the scarifying teeth A, is greatest at the inside corners of the points which are nearest to the crib is and which meet with the greatest resistance in dislodging the pieces of ballast rock. This wear on the inside corners of the working points leaves the outside corners of such points in sharp condition and advantage is taken of this condition by interchanging the teeth on the two wing frames B. In addition to interchanging the teeth as above described, they are reversed from tim to time on their hanger bars 23 to bring the previously trailing points into leading position, whereby an ex ceptionally large part of the tooth structure is made available for wear in the work to be performed;

The eifect produced the reversal and interchange of teeth is clearly shown in Figs. 8 to 15 inclusive, Figs. 8 and 9 showing right and left teeth with the inside corners of the leading points worn as in an operation in which new teeth. were employed at the beginning. Figs. 10 and 11 i1- lustrate a further step and show the right and left teeth as interchanged and the leading points thereof further worn. Figs. 14 and '15 show the same teeth reversed and still further worn. This reversal and interchange of teeth A may be continued until the teeth are worn back to the bolts 40 or entirely therethrough, the desirability for the supplemental clamping action of said bolts 40 being eliminated upon the appreciable shortening of the points by wear.

Changes in the specific form of my invention, as herein disclosed, may be made within the scope of what is, claimed without departing from the spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. In a device for scarifying the ballast shoulders of a railway track, a traveler movable along the wing frames pivoted to the traveler at opposite sides thereof, hanger bars carried by the wing frames, each hanger bar havina plurality of openings therein providing sockets at the opposite sides thereof, scarifying teeth, each tooth comprising a composite structure consisting of a pair of identical plate-like members of triangular formation adapted to be assembled with the inner face of one against the corresponding face of the other, each member having opposed workin points and a recessed shank portion there between, the recessed portions of assembled tooth members providing an aperture in the assembly for receiving a hanger bar, the shank portion of each tooth member having a plurality of bosses issuing from its in er face, a number of such bosses being adapted to fit in the sockets in one side of a hanger bar, each shank portion having bores therein extending axially through the bosses thereof, and bolts received in said bores for detachably clamping assembled tooth members together, the members of a tooth being adapted to be disassembled and detached from a hanger bar and reassembled and reattached thereto in reversed relation to present a different working point to the work, the sockets in the hanger bars receiving a diiferent combination of bosses in reversed relation of the tooth, the bosses engaging in the hanger bar sockets, in either relation of the tooth serving to position the tooth angularly relative to the bar with the leading point depressed, the teeth being interchangeable from the hanger bars of one wing frame to the hanger bars of the other wing frame to provide for the disposition of the least worn corners of the Working points of the teeth nearest to the crib of the track.

2. In a device for scarifying the ballast shoul ders of a railway track, a traveler movable along the track, hanger frames at opposite sides of the traveler, hanger bars carried by said frames, each hanger bar having a plurality of sockets therein at each side thereof, scarifying teeth, each tooth comprising a composite structure consisting of a pair of identical plate-like members of triangular formation adapted to be assembled with the inner face of one against the coi esponding face of the other, each member having opposed working points and a recessed shank portion therebetween, the recessed portions of assembled tooth members providing an aperture in the assembly for receiving a hanger bar, the shank portion of each tooth member having a plurality of bosses issuing from its inner face, a number of such bosses being adapted to fit in the sockets in one side of a hanger bar, each tooth member having bores therein adapted to register with similar bores of a companion member assembled therewith, and bolts received in said bores for detachably clamping assembled tooth members together, the members of a tooth being adapted to be disassembled and detached from a hanger bar and reassembled and reattached thereto in reversed relation to present a different working point to the work, said teeth being interchangeable from the hanger bars of one hanger frame to the hanger bars of the other hanger frame to provide for the disposition of the least Worn corners of the working points of the teeth nearest to the crib of the track.

3. In a device for scarifying the ballast shoulders of a railway track, a traveler movable along the track, hanger bars supported by the traveler at either side thereof, each hanger bar having a plurality of sockets therein at either side thereof, scarifying teeth, each tooth comprising a composite structure consisting of a pair of identical plate-like members of triangular formation adapted to be assembled with the inner face of one against the corresponding face of the other, each member having opposed Working points and a recessed shank portion therebetween, the recessed portions of assembled tooth members pro viding an aperture in the assembly for receiving a hanger bar, the shank portion of each tooth member having a plurality of bosses issuing from its inner face, a number of such bosses being adapted to fit in the sockets in one side of a hanger bar, each tooth member having bores therein, some of said bores extending longitudinally through the bosses, and bolts received in said bores for detachably clamping assembled tooth members together, the members of a tooth being adapted to be d sassembled and detached from a hanger bar and reassembled and reattached thereto in reversed relation to present a different point of the tooth to the work, said teeth being interchangeable from the hanger bars at one side of the traveler to the hanger bars at the other side thereof to dispose the least worn corners of the Working points of the teeth nearest to the crib of the track.

4. A scarifier element including a hanger bar and an elongated double pointed tooth adapted to be mounted angularly thereon with one of the po nts leading and depressed. relative to the other point, the hanger bar having a plurality of openings in the lower end thereof extending therethrough and providing sockets at its opposite sides, the tooth being a composite structure consisting of two identical plate-like members of triangular format on adapted to be assembled with the corresponding faces thereof against each other, each tooth member having a recessed shank portion between the working points thereof, the recessed portions of the assembled tooth members providing an aperture in the assembly for receiving the lower end of the hanger bar, the shank portion of each tooth member having a plurality of bosses issuing from its inner face, a number of such bosses being adapted to fit in the sockets in one side of the hanger bar, each tooth member having bores therein, some thereof extending longitudinally through the bosses, and bolts received in said bores for detachably clamping the assembled tooth members together and securing them to the hanger bar, the members of said tooth being adapted to be d sassembled and detached from the hanger bar and reassembled and reattached thereto in reversed-relation to present the previously trail ng point of the tooth in leading position, the sockets in the hanger bar receiving a different combination of bosses on the tooth members to maintain the original angularity between tooth and hanger bar.

5. A scarifier element including a hanger bar and an elongated double pointed tooth adapted to be mounted thereon with one of the points in leading position, the hanger bar having a plurality of openings at its lower end extending therethrough and providing sockets at the opposite sides thereof, the tooth comprising a composite structure consisting of two identical platelike members of triangular formation adapted to be assembled thereof against each other, each tooth member having a recessed shank portion between the working points thereof, the recessed portions of assembled tooth members providing an aperture in the assembly for receiving the lower end of the hanger bar, the shank portion of each tooth member having a plurality of bosses issuing from its inner face, a number of such bosses being adapted to fit in the sockets in one side of the hanger bar, each tooth member having bores therein, some thereof extending longitudinally through the bosses, and bolts received in said bores for detachably clamping the assembled tooth members together and securing them to the hanger bar, the members of said tooth bewith the corresponding faces l lo ing adapted to be disassembled and detached from the hanger bar and reassembled and reattached thereto in reversed relation to present the previously trailing point of the tooth in leading position.

6. A scarifier element including a hanger bar and an elongated double pointed tooth adapted to be mounted thereon with one of the points in leading position, the hanger bar having a plurality of openings at its lower end extending therethrough and providing sockets at the opposite sides thereof, the tooth comprising a coll posite structure consisting of two identical platelike members of triangular formation adapted to be assembled with the corresponding faces thereof against each other; each tooth member having a recessed shank portion between the Working points thereof, the recessed portions of assembled tooth members providing an aperture in the assembly for receiving the lower end of the hanger bar, the shank portion of each tooth member having a plurality of bosses issuing from its inner face and adapted to fit in the sockets at one side of the hanger bar, each shank portion also having bores therein, countersunk at the outer face thereof and extending longitudinally through the bosses, and bolts with nuts therefor adapted to be received in said bores for detachably clamping the assembled tooth members together and securing them to the hanger bar, the heads of said bolts and the nuts therefor being accommodated within the countersinks of said bores, the members of said tooth being adapted to be disassembled and detached from the hanger bar and reassembled and reattached thereto in reversed relation to present the previously trailing point of the tooth in leading position' '7. A scarifier element including a hanger bar and an elongated tooth pointed at opposite ends thereof and adapted to be mounted on said bar with one of the points in leading position, the hanger bar having a plurality of sockets therein at either side thereof, the tooth comprising a composite structure consisting of two identical plate-like members of triangular formation adapted to be assembled with the corresponding faces thereof against each other, each tooth memher having a recessed shank portion between the working points thereof, the recessed portions of assembled tooth members providing an aperture the assembly for receiving the lower end of the hanger bar, the shank portion of each tooth member having a plurality of bosses issuing from its inner face and adapted to fit in the sockets at one side of the hanger bar, each tooth member having bores therein adapted to register with corresponding bores of the companion member, and bolts received in said bores for detachably clamping the assembled tooth members together with their bosses lodged in the sockets of the hanger bar, the members of said tooth being adapted to be disassembled and detached from the hanger bar and reassembled and reattached thereto in reversed relation to present the pre viously trailing point of the tooth in leading position.

8. A scari'iier element including a hanger bar and a tooth, the hanger bar having a plurality of sockets therein at either side thereof, the tooth comprising a composite structure consisting of two identical plate-like members adapted to be assembled with the corresponding faces thereof against each other, each tooth member having a working point and a shank portion, the shank portions of assembled tooth members providing a gap in the assembly for receiving the lower end of the hanger bar, the shank portion of each tooth member having a plurality of bosses issuing from its inner face and adapted to fit in the sockets at one side of the hanger bar, each shank portion having bores therein extending longitudinally through the bosses thereon, and bolts received in said bores for detachably clamping the as- HARRY W. PROTZELLFR. 

